Torque characteristics

I'm interested in opinions about the t orque characterisics of Commabndo motors, I believe it is a major strength of the design. I raced a Triumph for about 12 years, and looking up the barrels at the Norton head I've noticed the squish band - a major difference. I note that in a few topics, some of you guys said you reshape the head to full hemishpere, fit bigger valves by changing the angles. I am wondering if this might actually be a backwards step, if the torque characteristics are changed in a bad way.
I found this a bit interesting:
http://www.epi-eng.com/piston_engine_te ... dstick.htm

Are we talking for road use, or race use ?

On the road, Commandos are quite rideable under 3000 or 4000 rpm, where for race use, increasing the torque (breathing) at higher rpm is the goal.

Rather opposed philosophies.....

Way undersquare tractor engine... GREAT torque curve!

I'm not familiar with Triumph chambers but Norton didn't make much squish band in their hemi's, so can't be the biggest difference though may help tolerate more CR on less octane yet CR's after 10:1 only add like 1.5% or less more umphF. More effective for torque may be more swirl at TDC from Norton valve positions. Still I'm am confused as the fastest obviously more powerful vintage twin racer I've seen was a Triumph form Big D out of Texas Dallas area. It left Kenny C. and a couple of others in a neck and neck battle, like 1/4 mile in 2/3 mile straight, behind the Triumph, which didn't give up nothing in the turns niether. Ugh.

My pleasure/disdain on my factory Combat is in 4th gear/19T sprocket she pulls nice right up to 90, but then freaking wakes up like a boat coming on a hard plane so its hard not to zoom right past the ton yet its too stupid dangerous a handler to enjoy the rush but in the straights. Trixie runs 30 mph in 4th for miles on THE Gravel pulling nice w/o lugging to climb steeps w/o speeding up any holding ~1800-2000 rpm. My P!! would idle at 600 rpm in 4th though deep sugar sand ruts that tires sunk in a few inches so made a wake exactly like a boat but w/o spreading waves as sand landed and stayed put. Any throttle would instantly spin a rooster tail w/o bog after 1000 rpm. Both Peel and P!! had significantly lightened flywheels so that didn't help but sure didn't seem to matter for torque feel.

The Torque characteristics of the Norton make me feel 50 pounds lighter.

In addition, other than cranking up the rear shock a notch, I have never ridden a motorcycle that made so little difference when riding 2 up. This is to say, of course, for its size, for we are not talking about mondo Goldwings and the like.